A Proceedings of the Royal Society B study of 5,600 mammals found that two species will never return to dry land.

In October 2020, the hoofbeats of American bison thumped across the prairie of the Rosebud Reservation for the first time in ...

The genes that build the cartilage of fish gills were repurposed to build the cartilage in mammals’ outer ears ...

To function through adulthood, permanent teeth need ongoing care, including brushing, flossing, and cleanings. Plus, dental ...

One of the most striking things about these creatures, however, is the fact that each of their eight arms almost seems to ...

Imagine the tree of life. The tip of every branch represents one species, and if you follow any two branches back through ...

Not all animal diseases are zoonotic diseases, some are zoonotic, some are non-zoonotic, and some are reverse zoonotic ...

Neurobiological emergentism” explains how sentience—the subjective feeling aspects of consciousness—developed in ancient animals that evolved the first complex neural systems.

"Both eyes can peer out from underneath the notch, giving a greater view of their surroundings while still partially shielded ...

three researchers point out in the December issue of Animal Behaviour. Tallying just the examples from vertebrates reported in scientific journals, the authors document coprophagy in more than 150 ...

British marine biologist and photographer Richard Smith focuses his work on the ocean’s tiniest and weirdest creatures.

These vertebrates were pterosaurs ... bony tails with a paddle-like "vane" that changed shape depending on the species and age of the animal. For example, in the early pterosaur Rhamphorhynchus, baby ...